plainheart edited a comment on issue #13157:
URL:
https://github.com/apache/incubator-echarts/issues/13157#issuecomment-676836144
It seems that there is no direct and simple way to get the children nodes of
clicked level node in the breadcrumb.
There is a workaround for your reference.
```js
myChart.on('click', function(e) {
if (e.selfType !== 'breadcrumb') {
return;
}
var series = myChart.getModel().getSeriesByName('Disk Usage')[0]; // or
use getSeriesByIndex(index)
var allNodes = [];
flattenNodes(series.getViewRoot(), allNodes);
var clickedNode = allNodes.find(function(t) {
return t.dataIndex === e.nodeData.dataIndex;
});
var children = clickedNode.children;
console.log('clicked', e.nodeData.dataIndex, e.nodeData.name, 'children
nodes', children);
})
function flattenNodes(root, nodes) {
nodes.push(root);
if (root.children) {
root.children.forEach(function(c) {
flattenNodes(c, nodes);
});
}
}
```
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